On the old SAE 300 motor generators, I believe the "special applications" setting increased the OCV of the current a little for a hotter start. I don't know that to be a fact, but I have been told by the old hacks in the shop that those machines had adjustable Open Circuit Voltage. If I'm mistaken, someone will, I'm sure, correct me :-) S.W.
"Sarah Sylvia Cynthia Stout would not take the garbage out..." (Shel Silverstein)